The Plant a Trillion Trees Podcast

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Episode 209 - Nicole Walker author of How to Plant a Billion Trees.

June 28, 2026

Nicole Walker is the author of several books including Howto Plant a Billion Trees: A Memoir of Childhood Trauma and the Healing Power of Nature, Sustainability: A Love Story, and The After – Normal: Brief, Alphabetical Essays on a Changing Planet, along with many other noted titles. She has written several pieces for The New York Times and is a recognized author in several editions of Best American Essays. Sheedits the Crux, the literary nonfiction series at University of Georgia Press and t...

Episode 208 - Rob Shaut is the Chief Operating Officer (COO) at Casey Trees a Washington, DC-based non-profit.  And special guest co-host Lou Meyer of The Davey Tree Expert Company.

May 05, 2026

Rob Shaut is the Chief Operating Officer (COO) at Casey Trees a Washington, DC-based non-profit. He was formerly the Tree Operations Director, managing a 30-person team responsible for planting 7,000 plus trees per year, while maintaining thousands more annually throughout Washington, DC, Maryland, and Virginia. Rob also oversees the Casey Tree Farm, Education, Policy and Land Conservation, Development, and Communications departments. He is a Certified Arborist® through the International Soc...

Episode 207 - A farewell to Hal Rosner, co-host to The Plant a Trillion Trees Podcast

April 01, 2026

Hal Rosner has been the co-host of The Plant a Trillion Trees Podcast since its founding in 2020. Hal brought his decades ofknowledge in the tree industry to the podcast. He partnered in finding guests, read their books and researched their backgrounds, created questions, and brought his keen wit and sense of humor to the interviews. Hal will be missed but we know that he will be successful in his future endeavors here and around the world as he continues to share his amazing energy through h...